Which process takes place in muscle cells when they do not get enough oxygen? electron transport chain cellular respiration ethyl alcohol fermentation lactic acid fermentation

lactic acid fermentation

Explanation:

Muscle derive energy in form of ATP by aerobic cellular respiration for their contraction. However, continuous physical activities deprive the muscles of oxygen. The process of lactic acid fermentation does not require the presence of oxygen to occur.

Therefore, in the absence of oxygen, lactic acid fermentation occurs in muscles to serve as a quick source of ATPs for muscle contraction.

Lactic acid fermentation

Explanation:

the oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. this blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. from the left ventricle, the blood passes through the aortic valve to the aorta.

deoxygenated blood leaves through the right ventricle through the pulmonary artery. from the right atrium, the blood is pumped through the tricuspid valve (or right atrioventricular valve), into the right ventricle.

condensation. good luck!